Open here for our page navigation
Monel / Monel®400
UNS N04400
Monel®400 is a nickel-copper alloy that is hardened by cold working only. Monel®400 has low corrosion rate in flowing seawater, therefore it is widely used in marine applications. Monel®400 also has excellent resistance to stress corrosion cracking in most freshwaters. Monel®400 can be used in temperatures up to 1000 ºF. The alloy has great mechanical properties at subzero temperatures.
Chemical Analysis:
C Mn S Si Ni Cu Fe
0.3% max 2.0% max 0.24% max 0.35% max 63.0% min 28-34% max 2.5% max
Monel®400 sheet is available in thicknesses ranging from .018 to .140". Monel®400 strip in coil from is available in lighter gauges up 24" wide. Monel®400 plate is available up 3" thick.
Monel®400 bar is available in wrought bar up to 11" diameter and larger sizes and shapes may be forged to order.
Monel®400 seamless pipe is available up to 8" NB. Larger sizes are available in welded construction (100% X-ray) and can also be fabricated to order. Monel®400 tubing is available up 3". Monel 400® redrawn tubes and tubing with tight tolerances can be supplied in almost any size no matter how small the size or quantity.
Monel®400 has many different industrial applications, some of which include:
Density Room temp. 8.82 [g/cm3]
Young's modulus - 177 [GPa]
Specific heat Room temp. 436 [J/kg-K]
Coefficient of linear thermal expansion (ΔT=0-100°C) 13.7 [10^-6/ºC]
Thermal conductivity Room temp. 21.9 [W/(m·K)]
Electric resistivity - 529 [Ω*m*10^-9]
Relative magnetic permeability Paramagnetic 1.010 -
Technical data:
Hardness 17 - 22 [HRC] - -
Ultimate tensile strength 670 - 770 [MPa] [psix10^3] 97 - 112
Service temperature -196 / 600 [ºC] [ºF] -320.8 / 1112
MONEL® is a registered trademark of the INCO family of companies.